Patent · US Active

Corona ignition device and method for its manufacture

US8217560B2 · kind B2 · utility

5Cited by

0References

12Claims

0Family size

Assignee

BORGWARNER BERU SYSTEMS GMBH · DE

Inventors

Thomas Giffels · Stuttgart, DE
Timo Stifel · Stuttgart, DE
Steffen Bohne · Freiberg, DE
Ganghuan Ruan · Ludwigsburg, DE
Helmut Mueller · Tauberbischofsheim, DE

Key dates

Filing date	Aug 30, 2011
Grant date	Jul 10, 2012
Priority date	—
Expiry date	Aug 30, 2031

Classification

Technology area (CPC H)Electricity
CPC primaryH01T13/38
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an ignition device for igniting fuel in an internal combustion engine by means of a corona discharge, comprising an ignition electrode, an outer conductor which surrounds the ignition electrode and has a forward end and a rear end, and an electrical insulator which is arranged between the ignition electrode and the outer conductor, wherein the insulator and the ignition electrode project beyond the forward end of the outer conductor in longitudinal direction and the ignition electrode comprises a plurality of electrode branches which each start from a base point, wherein the insulator extends beyond the base points in longitudinal direction. According to the invention an end surface of the electrode branches is uncovered.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.